Taco Bell Freebie: How To Get A Free Crunchy Taco On Tuesday 04/29/21 AT 10:59 AM Taco Bell’s latest promotion will have some fans of the Mexican restaurant chain feeling over the moon as it just happens to coincide with a new lunar phase on Tuesday. Customers will be able to get a free Crunchy Taco, the best-selling item on the Taco Bell menu, from the chain on Tuesday, May 4, from 8 p.m. to 11:59 p.m. in-store or all-day through the app and online in more than 20 markets worldwide. Some of the markets that are participating in the global giveaway include the U.S., U.K., Australia, India, Costa Rica, Guatemala, and Puerta Rico.